Electrical control knob



FIG. 1 is a perspective view of a electrical control knob according tothe present invention.

FIG. 2 is a plan view of FIG. 1.

FIG. 3 is a side view of FIG. 1; and,

FIG. 4 is a front view of FIG. 1.

The ornamental design for “electrical control knob,” as shown anddescribed.